53_willysExplorerNov 06, 2016MileageI just replaced my 2001 7.3 powerstroke with a new 2016 6.7 powerstroke 4X4 I know the 6.7 won't get the mileage that my old truck got but once it's broke in what kind of mileage are you 6.7 owners ...Show More
Chuck_thehammerExplorerNov 06, 2016the only part that NEEDS to break-in is the differential(s)... ( New Vehicle )so almost Zero difference in mileage. towingempty is another matter. New one will be better.Old Wise Tails.. never seem to die.. like chrome muffler bearings... turn signal Flasher fluid... and 3,000 mile oil changes. but can I have a new spinner knob for a steering wheel. :)